<template>
  <div class="login">
    <div>
      <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form">
        <h3 class="title">若依{{ $t('system') }}</h3>
        <el-form-item prop="username">
          <el-input
            v-model="loginForm.username"
            auto-complete="off"
            placeholder="账号"
            type="text"
          >
            <svg-icon slot="prefix" class="el-input__icon input-icon" icon-class="user"/>
          </el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            ref="password"
            v-model="loginForm.password"
            :type="passwordType"
            auto-complete="off"
            placeholder="密码"
            @keyup.enter.native="handleLogin"
          >
            <svg-icon slot="prefix" class="el-input__icon input-icon" icon-class="password"/>
            <svg-icon slot="prefix" :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'"
                      class="show-pwd" @click="showPwd"/>
          </el-input>
        </el-form-item>
        <el-form-item v-if="captchaEnabled" prop="code">
          <el-input
            v-model="loginForm.code"
            auto-complete="off"
            placeholder="验证码"
            style="width: 63%"
            @keyup.enter.native="handleLogin"
          >
            <svg-icon slot="prefix" class="el-input__icon input-icon" icon-class="validCode"/>
          </el-input>
          <div class="login-code">
            <img :src="codeUrl" class="login-code-img" @click="getCode"/>
          </div>
        </el-form-item>
        <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">{{
            $t('remember_pwd')
          }}
        </el-checkbox>
        <el-form-item style="width:100%;">
          <el-button
            :loading="loading"
            size="medium"
            style="width:100%;"
            type="primary"
            @click.native.prevent="handleLogin"
          >
            <span v-if="!loading">登 入</span>
            <span v-else>登 录 中...</span>
          </el-button>
          <div v-if="register" style="float: right;">
            <router-link :to="'/register'" class="link-type">立即注册</router-link>
          </div>
        </el-form-item>
      </el-form>
      <!--  底部  -->
      <div class="el-login-footer">
        <span>Copyright © 2018-2023 ruoyi.vip All Rights Reserved.</span>
      </div>
    </div>
  </div>
</template>

<script>
import {getCodeImg} from "@/api/login";
import Cookies from "js-cookie";
import {decrypt, encrypt} from '@/utils/jsencrypt'
import i18n from "@/lang/index";

export default {
  i18n,
  name: "Login",
  data() {
    return {
      codeUrl: "",
      loginForm: {
        username: "admin",
        password: "123456",
        rememberMe: false,
        code: "",
        uuid: ""
      },
      loginRules: {
        username: [
          {required: true, trigger: "blur", message: "请输入您的账号"}
        ],
        password: [
          {required: true, trigger: "blur", message: "请输入您的密码"}
        ],
        code: [{required: true, trigger: "change", message: "请输入验证码"}]
      },
      loading: false,
      // 验证码开关
      captchaEnabled: true,
      // 注册开关
      register: false,
      passwordType: 'password',
      redirect: undefined
    };
  },
  watch: {
    $route: {
      handler: function (route) {
        this.redirect = route.query && route.query.redirect;
      },
      immediate: true
    }
  },
  created() {
    this.getCode();
    this.getCookie();
  },
  methods: {
    getCode() {
      getCodeImg().then(res => {
        this.captchaEnabled = res.captchaEnabled === undefined ? true : res.captchaEnabled;
        if (this.captchaEnabled) {
          this.codeUrl = "data:image/gif;base64," + res.img;
          this.loginForm.uuid = res.uuid;
        }
      });
    },
    showPwd() {
      debugger
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    getCookie() {
      const username = Cookies.get("username");
      const password = Cookies.get("password");
      const rememberMe = Cookies.get('rememberMe')
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password: password === undefined ? this.loginForm.password : decrypt(password),
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
      };
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true;
          if (this.loginForm.rememberMe) {
            Cookies.set("username", this.loginForm.username, {expires: 30});
            Cookies.set("password", encrypt(this.loginForm.password), {expires: 30});
            Cookies.set('rememberMe', this.loginForm.rememberMe, {expires: 30});
          } else {
            Cookies.remove("username");
            Cookies.remove("password");
            Cookies.remove('rememberMe');
          }
          this.$store.dispatch("Login", this.loginForm).then(() => {
            this.$router.push({path: this.redirect || "/"}).catch(() => {
            });
          }).catch(() => {
            this.loading = false;
            if (this.captchaEnabled) {
              this.getCode();
            }
          });
        }
      });
    }
  }
};
</script>

<style lang="scss" rel="stylesheet/scss">
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-image: url("../assets/images/bg.png");
  background-size: cover;
}

.title {
  margin: 0px auto 30px auto;
  text-align: center;
  color: #707070;
}

.login-form {
  border-radius: 6px;
  background: #cedbd633;
  width: 400px;
  padding: 25px 25px 5px 25px;

  .el-input {
    height: 38px;

    input {
      height: 38px;
    }
  }

  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 2px;
  }
}

.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}

.login-code {
  width: 33%;
  height: 38px;
  float: right;

  img {
    cursor: pointer;
    vertical-align: middle;
  }
}

.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #529dd5;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}

.login-code-img {
  height: 38px;
}

.show-pwd {
  position: absolute;
  left: 315px;
  top: 12px;
  font-size: 16px;
  color: #889aa4;
  cursor: pointer;
  //user-select: none;
}
</style>
